diff options
Diffstat (limited to 'core/src/ffluci/sys.lua')
| -rw-r--r-- | core/src/ffluci/sys.lua | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/core/src/ffluci/sys.lua b/core/src/ffluci/sys.lua index 334768c0e..f50b014f0 100644 --- a/core/src/ffluci/sys.lua +++ b/core/src/ffluci/sys.lua @@ -26,6 +26,8 @@ limitations under the License. module("ffluci.sys", package.seeall) require("posix") +require("ffluci.bits") +require("ffluci.util") -- Runs "command" and returns its output function exec(command) @@ -68,6 +70,11 @@ function hostname() return io.lines("/proc/sys/kernel/hostname")() end +-- Returns the contents of a documented referred by an URL +function httpget(url) + return exec("wget -qO- '"..url:gsub("'", "").."'") +end + -- Returns the load average function loadavg() local loadavg = io.lines("/proc/loadavg")() @@ -79,11 +86,49 @@ function reboot() return os.execute("reboot >/dev/null 2>&1") end +-- Returns the system type, cpu name, and installed physical memory +function sysinfo() + local c1 = "cat /proc/cpuinfo|grep system\\ typ|cut -d: -f2 2>/dev/null" + local c2 = "uname -m 2>/dev/null" + local c3 = "cat /proc/cpuinfo|grep model\\ name|cut -d: -f2 2>/dev/null" + local c4 = "cat /proc/cpuinfo|grep cpu\\ model|cut -d: -f2 2>/dev/null" + local c5 = "cat /proc/meminfo|grep MemTotal|cut -d: -f2 2>/dev/null" + + local s = ffluci.util.trim(exec(c1)) + local m = "" + local r = "" + + if s == "" then + s = ffluci.util.trim(exec(c2)) + m = ffluci.util.trim(exec(c3)) + else + m = ffluci.util.trim(exec(c4)) + end + + r = ffluci.util.trim(exec(c5)) + + return s, m, r +end + group = {} group.getgroup = posix.getgroup net = {} +-- Returns whether an IP-Adress belongs to a certain net +function net.belongs(ip, net) + local netparts = ffluci.util.split(net, "/") + + if #netparts ~= 2 then + return nil + end + + local binadr = net.ip4bin(ip) + local binnet = net.ip4bin(netparts[1]) + + return (binadr:sub(1, netparts[2]) == binnet:sub(1, netparts[2])) +end + -- Returns all available network interfaces function net.devices() local devices = {} @@ -93,6 +138,52 @@ function net.devices() return devices end +-- Returns the kernel routing table +function net.routes() + return _parse_delimited_table(io.lines("/proc/net/route")) +end + +-- Returns the numeric IP to a given hexstring +function net.hexip4(hex) + if #hex ~= 8 then + return nil + end + + local hexdec = ffluci.bits.Hex2Dec + + local ip = "" + ip = ip .. tostring(hexdec(hex:sub(7,8))) .. "." + ip = ip .. tostring(hexdec(hex:sub(5,6))) .. "." + ip = ip .. tostring(hexdec(hex:sub(3,4))) .. "." + ip = ip .. tostring(hexdec(hex:sub(1,2))) + + return ip +end + +-- Returns the binary IP to a given IP +function net.ip4bin(ip) + local parts = ffluci.util.split(ip, '%.') + if #parts ~= 4 then + return nil + end + + local decbin = ffluci.bits.Dec2Bin + + local bin = "" + bin = bin .. decbin(parts[1], 8) + bin = bin .. decbin(parts[2], 8) + bin = bin .. decbin(parts[3], 8) + bin = bin .. decbin(parts[4], 8) + + return bin +end + +-- Tests whether a host is pingable +function net.pingtest(host) + return os.execute("ping -c1 '"..host:gsub("'", '').."' >/dev/null 2>&1") +end + + process = {} process.info = posix.getpid @@ -123,4 +214,94 @@ function user.setpasswd(user, pwd) local cmd = "(echo '"..pwd.."';sleep 1;echo '"..pwd.."')|" cmd = cmd .. "passwd '"..user.."' >/dev/null 2>&1" return os.execute(cmd) +end + + +wifi = {} + +function wifi.getiwconfig() + local cnt = exec("/usr/sbin/iwconfig 2>/dev/null") + local iwc = {} + + for i, l in pairs(ffluci.util.split(ffluci.util.trim(cnt), "\n\n")) do + local k = l:match("^(.-) ") + l = l:gsub("^(.-) +", "", 1) + if k then + iwc[k] = _parse_mixed_record(l) + end + end + + return iwc +end + +function wifi.iwscan() + local cnt = exec("iwlist scan 2>/dev/null") + local iws = {} + + for i, l in pairs(ffluci.util.split(ffluci.util.trim(cnt), "\n\n")) do + local k = l:match("^(.-) ") + l = l:gsub("^[^\n]+", "", 1) + if k then + iws[k] = {} + for j, c in pairs(ffluci.util.split(l, "\n Cell")) do + c = c:gsub("^(.-)- ", "", 1) + c = ffluci.util.split(c, "\n", 7) + c = table.concat(c, "\n", 1, 7) + table.insert(iws[k], _parse_mixed_record(c)) + end + end + end + + return iws +end + + +-- Internal functions + +function _parse_delimited_table(iter, delimiter) + delimiter = delimiter or "\t+" + + local data = {} + local trim = ffluci.util.trim + local split = ffluci.util.split + + local keys = split(trim(iter()), delimiter) + for i, j in pairs(keys) do + keys[i] = trim(keys[i]) + end + + for line in iter do + local row = {} + line = trim(line) + if #line > 0 then + for i, j in pairs(split(line, delimiter)) do + if keys[i] then + row[keys[i]] = j + end + end + end + table.insert(data, row) + end + + return data +end + +function _parse_mixed_record(cnt) + local data = {} + + for i, l in pairs(ffluci.util.split(ffluci.util.trim(cnt), "\n")) do + for j, f in pairs(ffluci.util.split(ffluci.util.trim(l), " ")) do + local k, x, v = f:match('([^%s][^:=]+) *([:=]*) *"*([^\n"]*)"*') + + if k then + if x == "" then + table.insert(data, k) + else + data[k] = v + end + end + end + end + + return data end
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